Car-wheel.



A. S. GUSTAFSON.

GAR WHEEL. APPLICATION FILED PEB.16, 1908,

Patented Sept. 15, 1908.

we 1'" Mae 0 ANDREW SIGFRID GUSTAFSON, OF OHATTANOOGA, TENNESSEE.

CAR-WHEEL.

Specification of Letters Patent.

Patented Sept. 15, 1908.

Application filed February 15, 1908. Serial No. 416,089.

general class shown and described in United States Letters Patent issuedto me on the 7th day of May, 1907 under No. 853082.

The object of the invention is to improve and simplify the constructionof the wheel and to render the same more efficient in 0peration by theprovision of diverging oil ducts which communicate with the oilreceiving reservoir and through which lubricant is automatically fed tothe axle.

A further object of the invention is to provide improved means forlocking the axle in position on the hub of the wheel, said looking meanscomprising a plurality of-hardened steel ins slidably mounted in the hubof the wheel and engaging a groove in the adjacent end of the axlewhereby friction between the parts is reduced to a minimum.

A still further object of the invention is generally to improve thisclass of devices so as to increase their utility, durability andefiiciency.

Further objects and advantages will appear in the following description,it being un derstood that various changes in form, pro portions andminor details of construction may be resorted to within the scope of theap ended claims.

11 the accompanying drawings forming a part of this specification:Figure 1 is a plan view ofa car wheel constructed in accordance with myinvention. Fig. 2 is a vertical sectional view taken on the line A-A ofFig. 1. Fig. 3 is a vertical sectional view taken on the line BB of Fig.2. Fig. 4 is a sectional view taken on the line C-C of Fig. 1. Fig. 5 isa detail sectional view taken on the line D-D of Fig. 2.

Similar numerals of reference indicate corresponding parts in all of thefigures of the drawings.

The improved car wheel forming the subject matter of the presentinvention comprises a hub 5 having a plurality of spokes 6 radiatingtherefrom and preferably formed integral with the rim 7 of the wheel, asshown.

The hub 5 is provided with a circumferential row of transverse cores orribs 8 defining intermediate oil passages 9 which surround the axle box10 and communicate with an oil receiving reservoir 11, the latter beingdisposed at the front end of the wheel and communicating with the boreof the axle box, as shown.

The front wall of the reservoir 11 is bowed outwardly and provided withoppositely disposed extensions 12 in which are threaded tubular valvecasings 13, the latter being extended transversely across the adjacentoil receiving compartments 14 and provided with an opening or orifice 15through which oil or other lubricant may be introduced into thecompartment 14 when it is desired to fill or replenish the chamber 11.

Slidably mounted in each tubular member 13 is a valve 16 which forms aclosure for the adjacent opening 15 and is normally held in closedposition by a coiled spring 17 interposed between the valve and theadjacent wall of the chamber 14.

Communicating with the chambers 14 is a circumferential groove 18 whichalso communicates with the oil passages 9 and through which oil is fedfrom the chamber 14 to the reservoir 11.

Arranged within the axle box is an axle 19 having its free end providedwith an annular groove 20 which registers with corresponding seatinggrooves or recesses 21 formed in the hub of the wheel for the receptionof locking devices 22, the latter being loosely mounted in the seatinggrooves and preferably in the form of hardened steel pins. The seatinggrooves or recesses 21 intersect the adjacent ribs 8 and are of greaterlength than the pins 22 so as to permit free sliding movement of thepins within the grooves thereby to re duce friction between the parts.

One end of each seating groove opens through the adjacent side wall ofthe reservoir 11 and is provided with interior threads 23 which engagecorresponding threads on suitable plugs 24, which latter form closuresfor the seating grooves 21 and also receive the impact of pins 22 as thelatter move back and forth in said grooves. Attention is here called tothe fact that the pins 22 by engagement with the walls of the grooves 20and 21 serve to lock the axle 19 in position on the hub of the wheelwhile at the same time permitting free rotation of one of said memberswith relation to the other. It will also be noted that the impact of oneend of each pin is received by the plug, while the impact of theopposite end of the pin is received by the adjacent interior wall of thehub 5. The rear end of the hub 5 is formed with a lateral enlargement 25having an annular recess 26 formed therein which communicates with thebore of the hub and in which is seated a flexible washer 27 preferablyformed of felt and which serves to prevent leakage of oil when the wheelis at rest.

' The interior walls of the axle box 10 are formed with diverging oilducts 28 which communicate with the adjacent seating grooves 21 andextend in the direction of the packing 27 so that as the wheel rotatesthe oil from the reservoir will be fed through one of the ducts 28longitudinally of the wheel and thence back through the adjacent duct 28and seating groove 21 to the reservoir thus thoroughly lubricating theaxle and its associated parts. By making the plugs 24 removable thelatter may be readily detached from the hub so as to permit the removalof the pins 22 when the latter become worn or otherwise injured fromconstant use or when it is desired to remove the wheel for any cause.

When the oil in the reservoir 11 needs replenishing a lateral pressureis exerted on the valve 16 which exposes the orifice 15 so that byintroducing the spout of an oil can within the tubular member 13 the oilwill enter the chamber 14 and thence flow through the annular groove 18and the several passages 9 to the reservoir 11, a portion of the oil inthe reservoir being fed through the seating grooves 21 and ducts 28 tothe axle, in the manner before stated. It will here be noted that theseating grooves 21 intersect the oil passage 9 so that a portion of theoil will enter the grooves and thus thoroughly lubricate the pins andthe grooved end of the axle so that friction between the parts isreduced to a minimum.

From the foregoing description it is thought that the construction andoperation of the device will be readily understood by those skilled inthe art and further description thereof is deemed unnecessary.

ister with the annular groove, locking pins slidably mounted in saidgrooves, and removable plugs forming closures for one end of eachseating groove.

3. The combination with an axle having an annular groove, of a wheelincluding a hub having a seating groove adapted to register with theannular groove, a locking pin slidably mounted in said grooves, and a removable closure for one end of the seating groove.

4. The combination with an axle having an annular groove, of a wheelincluding a hub having a seating groove opening through one side of thehub and adapted to register with the annular groove, a locking pinslidably mounted in said grooves, and a removable plug forming a closurefor the open end of said seating groove.

5. The combination with an axle having an annular groove, of a wheelincluding a hub having a seating groove adapted to register with theannular groove, said seating groove opening through one side of the huband having its interior walls threaded, a looking pin slidably mountedin said grooves, and a removable plug forming a closure for one end ofthe seating groove and provided with threads engaging the threaded wallsof said seating groove.

In testimony that I claim the foregoing as my own, I have hereto affixedmy signature in the presence of two witnesses.

ANDREW SIGFRII) GUSTAFSON.

l/Vitnesses:

J. M. SLAUGHTER, W. S. BALTON.

